"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 故障&可靠性测试
Case Name   : 备份时间为2019.12.31（非闰年）跳转2020.1.1（闰年）
Create At   : 2020/11/27
@zou_jialiang0505328126
Description :
    1.修改主机时间为非闰年12/31/2019 23:59:50
    2.主机执行备份指令
    3.使用备份文件恢复主机
    4.主备切换
Expect      :
    1.修改主机时间成功
    2.备份成功
    3.恢复成功
    4.主备切换成功
History     :
    Modified by @wan005 2021/1/15: 增加等待时间
    Modified by @wan005 2021/1/22: 增加ntp服务安装步骤
    Modified by @wan005 2021/3/23: 增加环境时区修复步骤
"""

import os
import unittest
import sys
import time
from yat.test import macro
from yat.test import Node

sys.path.append(sys.path[0] + "/../")
from testcase.utils.CommonSH import *
from testcase.utils.Common import Common
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger


class Basebackup(unittest.TestCase):
    commonshpri = CommonSH('PrimaryDbUser')
    commonshsta = CommonSH('Standby1DbUser')
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info('------------Opengauss_Reliability_Tools_Backup_Case005.py 开始执行------------')
        self.dbPrimaryDbUser = Node(node='PrimaryDbUser')
        self.dbStandby1DbUser = Node(node='Standby1DbUser')
        self.dbStandby2DbUser = Node(node='Standby2DbUser')
        self.dbStandby1Root = Node(node='Standby1Root')
        self.db_primary_root_node = Node(node='PrimaryRoot')
        self.Constant = Constant()
        self.common = Common('PrimaryRoot')
        self.backup_file = os.path.join(macro.DB_BACKUP_PATH, 'backup_dir')
        self.primary_hostname = \
            self.db_primary_root_node.sh('hostname').result()

        result = self.common.check_system_timezone(
            *('PrimaryRoot', 'Standby1Root', 'Standby2Root'))
        self.log.info(result)
        self.assertTrue(result)

        self.log.info('-------------------创建备份路径-----------------------------------')
        shell_cmd = f'rm -rf {self.backup_file}; mkdir {self.backup_file};'
        self.log.info(shell_cmd)
        result = self.dbPrimaryDbUser.sh(shell_cmd).result()
        self.log.info(result)

        self.log.info('=====安装ntp服务=======')
        result = self.db_primary_root_node.sh('yum install -y ntp').result()
        self.log.info(result)
        result = self.db_primary_root_node.sh(
            'systemctl enable ntpd').result()
        self.log.info(result)
        result = self.db_primary_root_node.sh('systemctl start ntpd').result()
        self.log.info(result)

    def test_backup(self):
        self.log.info("-----------------------1.修改主机时间为非闰年12/31/2019 23:59:50：成功-----------------------------")
        datecmd = "date -s '12/31/2019 23:59:50';hwclock --systohc;service ntpd stop;ntpdate ntp.api.bz;service ntpd start"
        self.db_primary_root_node.sh(datecmd)
        self.log.info(datecmd)
        beforeTime = self.commonshpri.executDbSql('select now();')
        self.log.info(beforeTime)
        self.assertTrue("2019-12-31" in beforeTime or
                        "2020-01-01" in beforeTime)

        self.log.info('--------------------2.主机执行备份指令：成功----------------------------')
        result = self.commonshpri.execu_gs_backup('backup', self.primary_hostname, self.backup_file, "--all")
        self.assertIn(self.Constant.BACKUP_BACKUP_SUCCESS_MSG, result)
        time.sleep(3)
        cmd = f'ls -l {self.backup_file} |grep "^-"|wc -l'
        self.log.info(cmd)
        result = self.dbPrimaryDbUser.sh(cmd).result()
        self.log.info(result)
        self.assertLess(0, int(result))
        time.sleep(10)
        afterTime = self.commonshpri.executDbSql('select now();')
        self.log.info(afterTime)
        self.assertIn("2020-01-01", afterTime)

        self.log.info('-------------------3.使用备份文件恢复主机:成功-----------------------------------')
        result = self.commonshpri.execu_gs_backup('restore', self.primary_hostname, self.backup_file, "--all")
        self.assertIn(self.Constant.BACKUP_RESTORE_SUCCESS_MSG, result)

        self.log.info('-------------------4.主备切换------------------------')
        result = self.commonshsta.executeGsctl('switchover', self.Constant.SWITCH_SUCCESS_MSG)
        self.assertTrue(result)
        result = self.commonshsta.exec_refresh_conf()
        self.assertTrue(result)

    def tearDown(self):
        self.log.info('-------------------------环境清理------------------------')
        self.log.info('--------------------------删除备份文件------------------')
        shell_cmd = f'rm -rf {self.backup_file}'
        self.log.info(shell_cmd)
        result = self.dbPrimaryDbUser.sh(shell_cmd).result()
        self.log.info(result)
        result = self.dbStandby1DbUser.sh(shell_cmd).result()
        self.log.info(result)
        result = self.dbStandby2DbUser.sh(shell_cmd).result()
        self.log.info(result)

        self.log.info('-------------------------恢复主备关系----------------------')
        result = self.commonshsta.check_whether_need_switch(self.primary_hostname)
        if result:
            result = self.commonshpri.executeGsctl('switchover', self.Constant.SWITCH_SUCCESS_MSG)
            self.log.info(result)
            result = self.commonshpri.exec_refresh_conf()
            self.log.info(result)

        self.log.info("-----------恢复系统时间--------------------")
        current = self.dbStandby1Root.sh("date \"+%m/%d/%Y %H:%M:%S\"").result()
        self.log.info(current)

        datecmd = f'date -s "{current}"'
        result = self.db_primary_root_node.sh(datecmd).result()
        self.log.info(datecmd)
        self.log.info(result)

        datecmd = 'hwclock --systohc;service ntpd stop;ntpdate ntp.api.bz;service ntpd start '
        result = self.db_primary_root_node.sh(datecmd).result()
        self.log.info(datecmd)
        self.log.info(result)
        self.log.info('----------Opengauss_Reliability_Tools_Backup_Case005.py 执行结束-----------------------')
